Portable stove



May 6, 1924. 1,492,786-

' W. J. FRISBIE PORTABLE STOVE F'ile d Nov. 26. 1923 2 Sheets-Sheet 1 J a: 57 49 4a 3a 29 May 6 1924.

W. J. FRISBIE PORTABLE STOVE Eiled Nov. 26, 1923 2 Sheets-Sheet 2 Patented May 6, 1924.

U I T E S T A T E 5 PATENT OFFICE.

WILLIAM J'. FRISBIE, OF CHICAGO, ILLINOIS, ASSIGNOR TO JUSTRITE MANUFACTUR;

ING COMPANY, or CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

PORTABLE STOVE.

Application filed November 26, 1923. Serial No. 676,935;

To all whom it may concern:

Be it known that I, WILLIAM J. FRISBIE, a citizen of the United States, and aresident of Chicago, in the county ofCook and State of Illinois, have invented certain newfor convenient packing of the several stove' parts into a container which adapts itself readily for traveling purposes or for pack- I ing in with other baggage. Provision must also be made for the ready arrangement of the parts when setting the stove up for use, and for adequately protecting the fuel tank from the heat of the burners.

The body of my improvedstove structure is of sheet metal and rectangular so that after the parts are arranged therein it will form a convenient package'which can be readily carried in a suitcase or other container, or when provided with a handle it can be carried like a suitcase. However, the main feature of my invention resides in the arangement for accommodating the stove burners and fuel tank. Such burners and tank are combined in a unitary structure with the burner structure mounted on the tank so that the unitary structure can be laid on its side in the container when the stove is folded up, the bottom of the container having an opening through which the tank is projected when the stove is set up so as to bring the tank below the container bottom with the burners within the container side walls and above the bottom, a wall between the burners and the tank serving as a support for the unitary structure and also for closing the bottom opening when'the stove is in use. This arrangement brings the tankbelow the container bottom where ,itis out of the way and protected and best insulated from theheat of the burners. I

The above and other features of myinventlon are d sclosed in the structure shown on the accompanying drawing, in ;which,

'FigQ 1 is a plan .view of the container with the cover partly removed and showing the unitary stove structure arranged-therein before'the stove is set up;

Fig. 2 is a plan view of thecontainer with the stove unitary structure removed and with the container bottom opening exposed toreceivethe stove structure in operative position, I 1

Fig. 3 is a plan view showing the stove structure in operative position, and

Fig. isa sectional viewqon plane 4+4, Fig. 3. I

, Thestove container or supporting frame is preferably of sheet metal and rectangular, comprising the front and rear walls-1Q and 11, the end walls 12 and 13, the bottom wall 14, and a cover 15 which may be separable or hinged tothe container body; 'Leg structures 16 and 17 are in the form of wire bent to, provide the U-shaped feet118, the ends 19 at the upper ends of the leg structures being deflected and extending through. the

front and. rear walls of the casing at the lower corners thereof so that the legs may be swung to open position to support the casing as shown in Fig. 4, or to be swung. upwardly with the feet 18 against the top of the cover when the stoveis folded and arranged for shipping or travel, as shown in Fig.1.

In the lJQttOIllll: of the oontainer isithe rectangular longitudinally extending opening 20 adjacent whose ends guideframes 21 and 22 are secured to the bottom which frames -.for1n slideways for the ends of'the closure, plate 23 which covers and closes the opening 20 when the stove is assembled for shipping. The closure plate has a looking or latch bar 24 pivoted thereto intermediate its ends by a pin 25. When the plate 23 has been slid along theframes 21,22 into position to close the opening 20 the I bar 24 is swung into position transverselyof the plate and with ends into latching engagement with the latch brackets 26 and 27 secured to the front and rear walls of the casing just above the casing bottom. lVhen the stove is to be set up the latch bar is rotated into parallelism with the plate and the plate is slid along its guide frames into position atone side of the opening as shown in Fig. 2.

On the inner sides of the front and rear walls of the casing and just below the upper edge-thereof are the ledges 28 and 29 for supporting the grid frame 30. The grid frame shown is of wire bent in zigzag fashion, the ends 31 extendingthrough suitable openings in the end walls of the casing so that the grid may be'swung into vertical position or into horizontal position to rest on the ledges when the stove is in use.

The stove structure or heating element comprises the burner structure 13' and the fuel tank T, the burner structure being parallel with and rig-idly mountedon the side of the tank. The burner strutiturecomprises the supply pipe 32terminating in fittings 33 and34' having at their top the bases 35 and 36 for the burner caps 37 and 38, which caps are'of sheet metal and provided in their tops with gas outlets'39. Depending from the fittings 33 and 34 are the seats 40 andA-Twhich are in register with the fittings 42 and 43 which saddle on the tank and are rigidly secured thereto, these fittings having the tops 44 and 45 between which and the seats lO'and41 is received'the plate 46, rivets or screws 47 extending through the seats, plate and fitting tops sothat the burner structure is rigidly mounted on the tank and the piate held in proper alignment.

Extending upwardly from the burner structure pipe 82 and then laterally and parallel with the pipe is the duct 48 which has the transversely extending air inlet tubes 4C9. Extending radially from the end of the tank and in communication therewith is the fuel supply pipe 50 which terminates at its other end in the fitting, 51, between which fitting and the nozzle 52 extends the generator tube 53. The nozzle projects into the ends'of the duct 48, and through the" fitting 51 and the generator tube and thefnozzle extends the valve stem 53 whose conical inner end cooperates with a suitable outlet opening: (not'shown) in the nozzle 52 to control the outflow of gasall in the' well known man ner. A stutiing" box 54 surrounds the valve stem at the outer end of the fitting 51 and prevents leakage of fuel. The stem terminatesin a knurled disc or wheel 55 by which the stem be readily turned. The generat'or tube 53 extends diametrally across the taper the'burner head 37 whose cap has the depression 56 into which fuel may be poured for priming the burner, the burning fuel rapidly heating the generator tube and fuel therein to convert such fuel into gas, which gas is blown into the duct 48 to be there thoroughly mixed with air entering through the tubes 49 so that a rich combustion mixture will be delivered into the pipe 32 and to the burners to be there consumed. The pipe 32is' always open to the burner 37. the ieat from this burner keeping the generator tube sufficiently hot for generating purposes after the primingfluid has been burned. Theother burner 38 may be connected into service as desired by means of a suitable valve (not shown) controlled by the L-shaped stem 5 1' extending axially with reference to the pipe 32.

The tank is provided with a suitable filler opening 58 which as'shown is in the side of the" tank and" provided with a plug 59. Extending into the tank at its right end I have shown a pump 60 loyineans of which air may be forced into the tank for maintaining theproper pressure therein for the forced feed of the 'heating'fluid to the generator tube, the flow being controlled by the valve on the stem 53.

The sides of theplate 4E6-between the stove strmtture and tank is such that it may cover the opening 20 in the container body when the stove isto be setup for use. hen the stove is closed up for shipment the closnr plate 23 is locked in position over the opening" 20, and the stove structure comprising the burner structure and tank and theplate. 4,6 lies on its side in the container as shown.

mit insertion of the pump end of the tank 1 below thecontainer bottom, whereafter the stove structure is lowered until the plate 46 rests on the container bottom parallel with the opening 20. The structure is then slid t'owa'rdthe left to bring the fuel supply pipe 50 through the slot 61 in the container bottom and into theend 62 of the supporting bracket 63 secured to the end wall of the coutainer, the lower end of the fitting 51 then resting against the top of the bracket to as sist in supporting the stove structure and holding it rigid, as shown in Fig. 4. In the adjacent side of the container is'the opening 64 through which the controlling disc 55 of the valve stem extends when the stove structure is set up, and in the opposite end wall of the container the opening 65 through which the fingers'may be inserted to control the valve stem 57 for the burner 38. The supporting plate 46 also deflected down [ill wardly at intervals to form abutments 66 I which, when the plate is in place against the container bottom over the opening 20, abut:- against the edges around the opemng to'accurately align the supporting plate and hold it in position. In the container bottom are the air inlet openings 67, and in the closure plate 23 are similar openings 68 which register with the container bottom openings when the plate is pushed to one side so that the plate will not interfere with-theflow of air' into the container and to the burner flames.

After the stove structure has been securely seated in operative position the grid frame is dropped into horizontal position against its supporting ledges and thestove is ready for use, the leg structures 16 and 17 resting on the ground to hold up the container with the tank sufliciently clearing the ground to be protected After priming fuel has been burned in the cup 56 to heat'the generator tube and generate gas the valve stem 53 is turned and the gas delivered into the mixing duct 48, the mixture being then burned at the burner head 37, and also at the head i 38 under control of the valve stem 57. The supporting'plate 46 for the stove structure acts also as a shield for the tank, the plate being preferably imperforate, and the tank will therefore be'kept cool" and at a safe temperature. when the stove is in use thetank will be entirely out of the way and protected against blows, bumps, etc., and when the pressure drops it can be readily restored by manipulating the pump 60.

When it is desired to pack up the stove the stem, 53' is turned to close its Valve and shut off the flow of fuel and then the stove structure is shifted toward the right to bring the valve controlling wheel 55 within the container and the pipe 50 out of the fit-- ting 63 and the slot 60. The structure is then canted and lifted to release the pump end of the tank and to raise the tank'up through the opening 20. The closure vplate 23 is then slid into place over the opening 20 and locked by means of its latch bar 24:, and

the stove structure isthen laid on its side in the tank as shown in Fig 1. frame is then swung down against its supporting ledges and the cover 15 applied, whereafter the leg structures 16 and 17 are swung against the top of the cover to look it inplace. The stove is then in compact form to be shipped or stored away. On the front wall of the stove a handle 69 is pivoted by means of which the stove can be readily carried.

The latch bar 24 may be provided with a knob 70 to facilitate its manipulation and the closure plate 23 may be provided with knobs 71 to facilitateits sliding back and forth in its guide frames 21 and 22 tov expose or to cover the opening 20;

Being below the container The grid The combination ofvthe burner structure and tank in a rigid unitary structure with the permanent connection between the tank and the mixing chamber has'many advantages. The generator tube is always rigidly held in proper realtionship to the burner heads and mixing tube and perfect opera-' tion is thus assured. -There are no parts which could be forgotten or lost when the stove is packed up. When the stove is set up the tank is entirely below the container bottom and shielded from the burner heat by the imperforate plate a6 which supports the stove structure in operative position. The entire stove is of simple, compact and durable construction and arrangement and does not take up any more floor space when set up for use, than when packed up forshipment or travel. Changes and modifications can of course vbe made which would still come within the scope of my invention and I do not therefore desire to be limited to the precise construction and arrangement shown. a V I claim as follows: 1 1. In a stove of' the class described, the combination of a stove frame in the form of a casing, a stove structure comprising a burner element and a fuel tank permanently to be entirely received withinsaid casing" when the stove is not in use, means for supporting said burner element in operative position within said casing and said tank below the casing bottom when the stove is in use, and fuel supply connections between" saidtank and burner element. 1

3. In astove of the class described, the combination of a stove frame in the, form of a casing, a burner element, a fuel tank,

fuel supply connection between said tank and burner element, means adapting said burner element and said tank and supply connection to be entirely received within said casing when the stove is not in use, and'means for supporting said burner element in operative position within said'casing and said tank below the casing bottom when the stove is set up for use.

4. In a'stove of the class'described, the

' combination with a casing of a unitary stove" structure, said structure comprising a burner element, a fuel tank, and a controllable fuel supply connection between said tank and burner element including a gas generator, said structure being adapted to be below the opening, structureforming a closure for :said openentirelyreceived within said casing j when the:-"St0VeiS2I10t- :in use, and-rmeans for-sup- =port1ng-sa1d structure 1n pperatrve position "with sa'idburner element rwithin the casing and said tank belowwthercasingjbottom.

In ,a 'stove -.;of the classrdescribed, the -co1nbination with a casing' of a unitary stove structure. saidstructure comprising afuel tank and a burnerelement together with a fuel supply connection between thetank and \burner element, ScLlCl SthUCt1'l'1'O being: adapted to bc entirelyreceivedwithin: said casing -when the stoveis notiniusegsaidcasing having/ an openiiwvin itsbottom pe-rmittingpositionin'giof sauilwst-ructure in operative position with the-burner elementwithin the casing aboa'c said opening and the fuel tank and: a support :for, said when the stove is in use.

6. In a 'stove of theclass 'dQSC'lllOBCl, the

combination with a stove-frame inthe form --of a casin yof a zunltary stove structure,

said structure comprising a fuel. tank, a burner element, fuel supply connection between the tank and element,v and7 a-support- .ving iplate between the tank and-element,

said casing having 7 an opening in its bottom 'through which' said tank may be :lowered when the stove 1s to be used, sa1d platethen lengaging with the casing bot-tom to close --sa1d opening and to fornra heatunsulating shield between the tank-and burner element when the stove is in operation, said unitary structure being :adapted to be entirely: -received withinasaid casing when the stove is not in use.

7. Ina stove of theclass described, the combination with a stove frame in the form of a casing, of a unitary stove structure, said structure comprisinga fuel tank,a burner element, and fuel supply connection between said-tank andel'ement, said structure being :adapted to be entirelyreceived within=said casing when the stove is not iHEUSQ, the bottom of said casing having an opening, permitting'positioning of said-structure in operative position *with' said burner element within the casing and above the-opening and with the tank below the opening, means for supporting said structure in such operament,--saidstructure being adapted to beentirely received within said casing when the stove-1s not in use, the casing bottom-having an opening permitting positloning of said (structure for operation with the burner element entirely within the casing and above saidopeningand with the; tank below -said wopening, nieans'fforsupporting said-structure in such operative position, and a -pla'te secured to the structure between said tank and burner element and serving to close said opening-when the stove is inuse and to protectsaid tank from thehcat of saidburner element.

9.-In a stove ofthe class described, the combination of a stoveframe in the form of acasing having anopeningin its bottom andia closur 'platezadapted to bemoved to "expose said opening, of a stove structure comprisinga fuel tank,a burner'element, and t a fuel supply connection between the tank and element, said structure being tadapt'ed to be entirely received within the wallsot said casing when the stove is not in -use,:said openingpermitting insertion therethrough i of said tank to -bring=said structure,

{inoperative position with the burnerele- 2 ment-within the casing and above said opening andnwith the 'tank below said opening, and a :plate for-supporting said structure in such, operative position, said-i plate serving to close said opening and toishield said tank from the heat of the burner element when the stove is inoperation.

10.*In a stove of the class described, the

' combination of a stove frame in the form'of acasing having an opening in its bottom, a closure platev forinormal ly closing said openringbut-adapted to bemoved' to expose the topening awheny-the-istove-is to 'be used, a vfuel tank, aburner element, a controllable fuel supply connection:between-said tank and burner element, a wall between said tank and burner element, said tank, burner element,- connection a and wall being all; secured together to form a ,unitary structure adapted stobe laid von its side and entirely withini-the casing when the stove is not in use, said opening being shaped to permit insertion,therethroughof said tank to bring said structure in upright operative position -with thetburn'er elemententirelywithin :the -casing,and with the tankbelow the casing, said wall serving -toclosesaidopening and to "formta' heat shield for. the tank when the stovesis in operation. 7

- 11.; In astove of. the class described, the combination ofa casing: having an opening -.in one ofxits wal-ls,a unitarystove structure couiprising a fuelatankand a burner element together with a fuel supply connection" betweenathetank and element. said structure being adapted to be entirely received within-said casing when thestoveis not in use, said opening adapting insertion therethrough of said tank to bring *said structure in operative position with the burner element entirely within the casing and said tank outside thereof, and a closure plate forsa-idopen-ing actingalso asa heat shield for said tank.

12. In a stove of the class described, the the casing, said tank being adapted to be combination of a casing, means for supportpacked entirely Within said casing With said 10 ing said casing on but spaced away from a burner element when the stove is closed for support, a fuel tank, a burner element, a transportation.

0 fuel supply connection for connecting said In Witness whereof, I hereunto subscribe tank with said burner element, means for my name this 22nd day of November A. D., supporting said burner element Within said 1923.

casing and said tank below the bottom of lVILLIAM J. FRISBIE. 

